5-3 Two-Step Problems

9 books are put into a box.

2 more books are put into the box.

How many books are in the box in all?

4 books were taken out of the box.

How many books are still in the box?

• 9 + 2 = 11 and 11 − 4 = 7

• 9 − 2 = 7 and 7 − 4 = 3

• 9 − 2 = 7 and 7 + 4 =11

• 9 + 2 = 11 and 11 + 4 = 15

Katie makes 11 notecards.

6 notecards are sent to her friends.

How many notecards are left?

She makes 6 more notecards.

How many notecards are there now?

• 11 + 6 = 17 and 17 + 6 = 23

• 11 − 6 = 5 and 5 − 4 = 1

• 11 − 6 = 5 and 5 + 6 = 11

• 11 + 6 = 17 and 17 − 6 = 11

11 birds sit on a wire.

8 of the birds fly away.

How many birds are still on the wire?

2 more birds fly away.

Now how many birds are on the wire?

• 11 + 8 = 19 and 19 + 2 = 21

• 11 − 8 = 3 and 3 − 2 = 1

• 11 + 8 = 19 and 19 − 2 = 17

• 11 − 8 = 3 and 3 + 2 = 5

Beth has 5 crayons.

She gives 2 crayons to Leo.

Then Beth buys 8 more crayons.

How many crayons does she have now?

• 15

• 11

• 3

• 13